Claims
- 1. A reciprocal chuck for a paving breaker comprising:
- a. an elongated tubular body terminating at a top end and terminating at a bottom end;
- b. said top end forming a top shoulder, said top shoulder adapted to seat thereabove, simultaneously, an annular wear pad and an annular elastic biasing means;
- c. said body having an inner surface forming a bore, said inner surface being polygonally shaped, as viewed in horizontal cross-section, the same shape as a top end portion of a moil shank;
- e. said body having an external surface extending between said top and bottom ends, said external surface, adjacent said bottom end, forming a radially extending collar;
- f. said body at said bottom end forming a bottom shoulder further comprising:
- i. at first portion, a surface for contacting as a stop a protruding collar of a moil shank; and
- ii. at a second portion, a grooved surface for stopping said chuck at said second stop position in said paving breaker; and
- g. said external surface having at least one keyway extending longitudinally therealong between said top and bottom ends, for receiving a key slidably therein.
Parent Case Info
This is a Divisional of application Ser. No. 08/234,743 filed Apr. 28, 1994, now U.S. Pat. No. 5,431,235.
US Referenced Citations (19)
Divisions (1)
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Number |
Date |
Country |
Parent |
234743 |
Apr 1994 |
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